The R-C-M-P says it collaborated with the F-B-I in the investigation that led to the arrest of a 19-year-old Canadian.
Abdulrahman El Bahnasawy (abdul-rock-mahn el banna-SOW'-ee), of Mississauga, Ontario has pleaded guilty in connection with an Islamic State inspired plot to target landmarks in New York City more than a year ago.
The Mounties say at no time was the safety or security of the public at risk.
El Bahnasawy declared his allegiance to the terror group in communications with an undercover F-B-I agent posing as an I-SIL supporter.
He was quoted as saying Americans ''need an attack.''
Federal law enforcement officials say they disrupted a plot to carry out terrorist attacks at New York City locations, including concert venues, subway stations and Times Square.
Prosecutors announced Friday that three men based in Canada, Pakistan and the Philippines had conspired to carry out terror attacks in the summer of 2016 in the name of the Islamic State.
Prosecutors say 19-year-old Abdulrahman El Bahnasawy bought materials to make a bomb but was arrested after travelling to New Jersey in May of 2016.
He pleaded guilty later that year, but the case was sealed while the investigation continued.
Nineteen-year-old U.S. citizen Talha Haroon was arrested in Pakistan in 2016. Thirty-seven-year-old Russell Salic was arrested in the Philippines in April.
Court documents say the men communicated online, and planned to carry out the attacks during the Islamic holy month of Ramadhan in 2016.
Sentencing is set for December 12th.